Garbage-furnace.



.8. 669,632. Patented Mar. l2, l90l.

F. GOBMAN.

GARBAGE FURNACE.

(Application flied Feb. 5. 1900.) (No Model.) I 3 Shoots-Shut I.

.51 enln No. 669,632. Patented Mar. l2, IQOII. F. GOR'MAN.

GARBAGE FURNACE.

Applicati0n filed Feb. 5, 1900.1

(No Model.) 3 Sheets-Sheot 2.

l b b I K IE1 I]. u w

' [1 I] I] H] I 3 1 s N B l q 4 Q No. 669,632 Patented Mar. I2, I90l. r. GOBMAN.

GARBAGE FURNACE.

(Application filed Feb. 5, 190a) (No Modal.) 3 Sheets-Sheet 3.

witnesses ZIALQM TM: "cums PEYEfls co. Pncvroumou WASHINGTON, o c

FRANK GORMAN, OF TOLEDO, OHIO.

GARBAGE-FURNACE.

SPECIFICATION forming part of Letters Patent No. 669,632, dated March 12, 1901..

Application filed February 5, 1900. Serial No. 3,949. (No model.)

To all whom it may concern.-

Be it known that I, FRANK GORMAN, a citizen of the United States, residing at Toledo, Lucas county, Ohio, have invented certain new and useful Improvements in Garbage- Furnaces, of which the following is a specification. I

My invention relates to and its object is to provide simple, economical, and eificient means for the cremation of garbage, offal, and the like and the fluids arising therefrom without smoke or stench. I attain these results by means of the devices and arrangement of parts hereinafter described and shown and illustrated in the accompanying drawings, made part hereof, in which Figure 1 is a perspective view of my furnace with the main floor and hopper, hereinafter referred to, broken away, showing the arrangement and relation of parts; Fig. 2, a central vertical section on line 0c 00, Fig. 3; and Fig. 3, a sectional top plan view on line y 2/ Like letters of reference indicate like parts throughout the drawings.

In the drawings, A is the furnace-wall, of cupola form, extending from the ground up through the main fioor B of the building and terminating in a stack or chimney.

O is a hopper at one side of the furnace, the top of which hopper extends above the floor and the bottom of which inclines downwardly beneath the floor toward the furnace. The hopper is provided at top with suitable folding doors and is of such height and dimension as to permit carts and wagons to dump their contents into the hopper.

The interior of the furnace is lined with refractory material, such as fire-brick, the inner wall a being somewhat removed from the outer wall, so that there is an annular space a between the two. The inner Wall is arched or dome-shaped at top, with an opening therethrough leading up into the stack. A series of openings a lead from the annular chamber a into the combustion-chamber, which is circular in horizontal section.

The grate D at the bottom of the furnacechamber is circular and to permit the rotation of this grate about a central hollow pillar E is supported on rollers d. The lower margin of the outer rim of the grate D is toothed, as a gear-wheel, and these teeth are engaged and driven by pinions (not shown in the drawings) on shaftf, provided with pul leys g, which are connected with any suitable source of power. The pillar Eis of fireclay or other suitable refractory material. Through the furnace-walls, above the revolving grate-bars and nearly on a level with the floor, is an opening it, through which the hopper 0 discharges onto the revolving grate D. It will be seen that by this arrangement, although the material to be burned is fed to the furnace at but one point, the material is by the rotation of the grate-bars evenly distributed over the surface of the grate.

The hopper C is provided with a false bottom, consisting of a screen i, which slopes to the inlet of the furnace. Below the screen the bottom or floor of the hopper is formed into a basin, as at is, for the reception of fluids, which are strained through the screen t'. From the basin It leads a series of pipes l downwardly, then through the wall of the furnace inwardly, and thence up through the hollow pillar E, where they terminate in a horizontal plane a trifle below their inlet in the basin 76. Above the mouths of the pipes Zis secured a dome-shaped piece m, flat at bottom, leaving a thin flat space m between the piece m and the top of the pipes and. the top of the pillar E.

n is a pipe leading from a blower into the space m. The months or outlets of the pipes Z are arranged in a circle surrounding the outlet end of the air-pipe n. The inlet ends of the pipes l are curved downwardly, as at Z, siphon-like, to prevent the pipes from becoming clogged, the basin serving as a catchbasin. Each of the pipes Zis provided with a nozzle and cock Z by means of which a small steam-hose may be connected with the pipes,thus providing for clearing these pipes of obstructions. Fluids flowing into the basin it will by their own gravity find their way into the space m, from whence they are driven radially, as an attenuated spray, by force of the air-blast through the pipe n.

In the wall of the furnace beneath the level of the revolving grate-bars is a circumferential chamber 0. From this chamber lead inwardly into the space beneath the grate-bars a series of twyers p, equidistantly spaced around the chamber and projecting upwardly toward the grate-bars. The chamber 0 is suitably connected, as at o, with a blower O. This blower is also connected, as at 0 through the wall of the furnace with the annular chamber a. The conduits leading from the blower O are provided with any suitable means for controlling the passage of air therethrough, though none are shown in the drawings.

Above the combustion-chamber, in the path of the flame or heated products of combustion, is located a pipe q, having an enlarged inlet leading to an exhaust fan or blower R, and thence into the hopper C, where the pipe terminates in a length having numerous perforations, as at q. The blower R withdraws from the furnace exceedingly-hot gases,which are expelled into and through the contents of the hopper and thence back into the furnace. Thus the moisture in the contents of the hopper is evaporated, the vapor being driven into the hot furnace, where it is consumed, drying the contents of the hopper preparatory to their reaching the furnace.

Through the masonry of the furnace, at a convenient height above the floor, is an opening 8, having a door t, by means of which access is had to the interior chamber of the furnace. Through this door the progress of the work within may be observed, and by means of forks the material resting upon the revolving grate may, if necessary, be stirred and loosened. Through this door when necessary fuel is also thrown in upon the grate.

The operation of my device is as follows: A fire being started in the furnace on the grate and the blowers O R being in operation, the doors or lids of the hopper are raised and the material to be incinerated is dumped into the hopper. Here by means of the hot-air blast it is dried as it slowly descends the perforated floor t' on its way to the furnace. The fluids from the charge pass down through the screen 2' into the catch-basin 76. From thence they flow through the pipes l into the flat horizontal space m, between the top of the pillar E and the piece m, and from whence it is ejected in a fine spray to be further vaporized and burned by the intense heat of the furnace. In case the contents of the hopper should clog the passage h, it may be readily cleared with a stout fork through one of the upper doors of the hopper, which are only opened for this purpose and for feeding the hopper. Under some conditions of the fire it is found desirable to admit a blast into the the like are consumed without perceptible smoke or stench and with the use of a comparatively small amount of fuel.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1s- 1. In a garbage furnace, a combustionchamber circular in horizontal section, a revoluble grate therein, a hopper for the reception of garbage at the side of the furnace having its outlet above the grate, a screen in the hopper, a basin below the screen, conduits having their inlets in the basin and their outlets in the furnace, and a spraying device at the outlet ends of said conduits.

2. In a garbage-furnace, a garbage hopper or receptacle, means for separating the liquids in said receptacle from the solids, means for conveying said liquids into the furnace, and means for spraying said liquids within the furnace.

3. In a garbage furnace, a combustionchamber, a hopper for the reception of garbage at the side of the furnace havingits outlet above the grate, a screen in the hopper, a basin below the screen, conduits having their inlets in the basin. and their outlets in the furnace, a spraying device at the outlet ends of said conduits, combined with a pipe or tube leading from the path of the flame or hot gases in such furnace into said hopper 0r receptacle, and a blower connected with said conduit adapted to discharge a portion of said hot gases into and through said hopper or receptacle. v

4:. In a garbage-furnace,a horizontally-revoluble circular grate, means for revolving said grate, twyers beneath the grate discharging upwardly through the grate, and a hopper at the side of the furnace and above the grate for feeding garbage by gravity upon the top of the grate.

5. A garbage-furnace comprising a cupola, a combustion chamber therein circular in horizontal section, an upwardly-projecting central pillar in said combustion-chamber, a horizontally-revoluble grate adapted to rotate about said pillar, twyers discharging beneath the grate, a hopper or receptacle at the side of the furnace adapted to feed into the furnace by gravity, means for separating and conveying the fluids from the hopper or receptacle into the furnace, means in the furnace for spraying the fluids discharged therein, and means for conducting a portion of the hot products of combustion into and through the contents of the hopper or receptacle.

6. A garbage-furnace comprising a cupola, a combustion chamber therein circular in horizontal section, an upwardly-projecting central pillar in said combustion-chamber, a horizontally-revoluble grateadapted to rotate about said pillar, twyers discharging beneath the grate, a hopper or receptacle at one side of the furnace adapted to feed into the furnace by gravity, means for separating and conveying the fluids from the hopper or re c'eptacle into the furnace, means in the furthe combustion-chamber of the furnace, and nace for spraying the fluids discharged theremeans for conducting a regulated air-blast in, means for conducting a portion of the hot into said annular chambers.

products of combustion into and through the FRANK GORMAN. 5 contents of the hopper 0r receptacle, annu- In presence of- .lar chambers Within the Walls of the furnace, WILBER A. OWEN,

openings between said annular chambers and l L. E. BROWN. 

